Marin Mersenne 2^P-1
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MnStatusDetails
4416641Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1722064696295284255460304383213097.12024-07-14 13:49:01
ECM
DigitsB1Curves
255000062 / 280
Estimated T-Level: 21.1 ⓘ
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-04-27Ken Yanosko00E417F3D38041A00
Verified (Factored)2001-01-08Marc Getty / Phil Fizur00E417F3D38041A0122803
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-07-14Jason LynchD9BB4B4758D87DBA1243648553
P-1 factors
DateFactorB1B2
2024-07-1417220646962952842554603043832119673000313652088750
History
DateUserTypeResult
2024-07-14David BarinaCERT
PRP Certification
Proof certified good
2024-07-14Jason LynchC-PRP
M4416641/172206469629528425546030438321 : D9BB4B4758D87DBA
PRP proof power = 7
PRP: Verified
Proof certified good
2024-07-14Jason LynchF-PM1
Factor: 172206469629528425546030438321 / (P-1, B1=19673000, B2=313652088750)
2021-08-10SRBaseNF
no factor from 2^70 to 2^71
2021-08-06axnNF-PM1
B1=10000000, B2=500000000
2021-07-11axnNF
no factor from 2^69 to 2^70
2021-06-28TJAOINF
no factor from 2^68 to 2^69
2018-06-21ramgeisNF
no factor from 2^67 to 2^68
2018-05-14Gordon SpenceNF
no factor from 2^66 to 2^67
2016-08-23mikrNF-PM1
B1=1800000, B2=68000000, E=12
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-06-21snme2pm1NF
no factor from 2^65 to 2^66
2014-08-29lycornNF
no factor from 2^64 to 2^65
2014-08-26JayderNF
no factor from 2^63 to 2^64
2012-02-03GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-10-28markrNF
no factor from 2^61 to 2^62
2010-08-30markrNF-PM1
B1=95000, B2=2066250, E=6